Home / 1,455.11-2,013.34-1,268.99

Finding the Fourth Proportional to 1,455.11, 2,013.34 and 1,268.99

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Solution

The fourth proportional to 1,455.11, 2,013.34 and 1,268.99 is: 1,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.11 : 2,013.34 = 1,268.99 : x
  2. Step 2: Convert to fraction form
    1,455.11/2,013.34 = 1,268.99/x
  3. Step 3: Cross multiply
    1,455.11x = 2,013.34 × 1,268.99
  4. Step 4: Simplify right side
    1,455.11x = 2,554,908.33
  5. Step 5: Solve for x
    x = 2,554,908.33/1,455.11
  6. Step 6: Final answer
    x = 1,755.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.